Sergey Shishkin CV

summary

Aimed to start a career in web development as a front-end developer, gain experience and skills in creating user interfaces.

Plan to develop in the direction of full-stack development in order to become a more versatile specialist who is able to work with both sides — client and server.

Strong in the rapid learning and academic performance of new technologies with their application in practice. I am open to any tasks and requirements in projects. I am constantly striving to write clean and maintainable code.

skills

HTML/CSS
Git system
Python
Java Script
React

sample code

function deepCopy(obj, copies = new WeakMap()) {
  if (typeof obj !== 'object' || obj === null) {
    return obj;
  }

  if (copies.has(obj)) {
    return copies.get(obj);
  }

  if (obj instanceof Date) {
    return new Date(obj);
  }

  if (obj instanceof Map) {
    return new Map(Array.from(obj, ([key, val]) =>
    [deepCopy(key, copies), deepCopy(val, copies)]));
  }

  if (obj instanceof Set) {
    return new Set(Array.from(
      obj, val => deepCopy(val, copies)
      ));
  }

  const copy = Array.isArray(obj) ? [] : {};

  copies.set(obj, copy);

  for (let key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key)) {
      copy[key] = deepCopy(obj[key], copies);
    }
  }

  Object.setPrototypeOf(copy, Object.getPrototypeOf(obj));

  return copy;
}

function areObjectsEqual(obj1, obj2) {

  const keys1 = Object.keys(obj1)
  const keys2 = Object.keys(obj2)

  if (keys1.length !== keys2.length) {
    return false;
  }

  for (const key in obj1) {

    const value1 = obj1[key];
    const value2 = obj2[key];

    const areValuesObjects =
      typeof value1 === 'object' &&
      typeof value2 === 'object';

    if (areValuesObjects) {
      return areObjectsEqual(value1, value2)
    }

    if (value1 !== value2) {
      return false;
    }
  }

  return true;
}